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Prongo Grade 7 Science Practice
Name
Date
chapter
Cell Structure
chapter
Body Systems & Homeostasis
chapter
Chemistry Intro
chapter
Forces & Motion
chapter
Heredity & Genetics
chapter
Brain Break — Science Trivia
1.
Organelles are specialized structures inside a ___.
2.
The ___ is the control center that stores DNA.
3.
___ are the powerhouses that release energy from food.
4.
Plant cells use ___ to capture light for photosynthesis.
5.
The ___ controls what enters and leaves the cell.
6.
___ is maintaining stable internal conditions in the body.
7.
A ___ is a change that triggers a response.
8.
Feedback helps the body ___ after a change.
9.
___ feedback reduces a change; negative feedback stabilizes.
10.
Body ___ interact to maintain homeostasis.
11.
A ___ has fixed composition; element or compound.
12.
A ___ combines two or more substances not chemically bonded.
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